19569980

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4967}}^1$

素因数の和:5173

約数の個数: 24

約数和(自身を含む): 41313888

約数和(自身を除く): 21743908

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4967, 9934, 19868, 24835, 49670, 99340, 978499, 1956998, 3913996, 4892495, 9784990, 19569980]

約数ペア:

[(1, 19569980), (2, 9784990), (4, 4892495), (5, 3913996), (10, 1956998), (20, 978499), (197, 99340), (394, 49670), (788, 24835), (985, 19868), (1970, 9934), (3940, 4967)]